Hello, Gentoo. I've just treated myself to a new machine based on a Ryzen 9 7900 processor. I chose the second newest generation so as not to get caught out with not quite debugged systems like I did the last time round.
Anyhow, I'm up to the stage of configuring the kernel, and I'm stuck at the bit where I need to specify the firmware to be incorporated into the kernel for the integrated graphics processor. The Gentoo documentation is unhelpful to put it mildly. In the AMDGPU document in the Gentoo Wiki, they talk about _cards_, not integrated graphics units, and it is not clear whether the authors are even aware of such graphics units, despite the fact they've existed for many years. The methods they give for divining the necessary firmware files fail hopelessly on my 7900 system. I'm not even sure whether I need to put any firmware into the kernel at all; maybe it's already fully contained in the processor. That's how good the doc is, after ~3 hours searching the web. So, rant mode off! Would a Gentoo expert please tell me where I can discover whether I need such firmware, and if so what. Many thanks in advance! -- Alan Mackenzie (Nuremberg, Germany).
